he one that clamps to the thermostat housing MUST be grounded to the engine or your Temp gauge will go,"High".
Sorry to be a pedantic SOB but it wont
A bad ground ( green) on the 7V regulator can make the output go high
as the reference voltage will 'float'
but poor grounding on the thermostat/sender will inhibit the current flow and make the
gauge read low, if at all.
Sadly, before we lost him. Marshall was providing kits for DIY 7V regulators
using the 7807 which for some reason is like rocking horse shit in the UK
Thats why I used cheap, common as muck, got loads right here, 7805s with
green leds on the ground pin to get the same effect.
Ok 6.95V but that'll do me its crude circuit anyway.
If you cant get a 7807, 7805's plus green leds and very important heatsink
will work nicely and have been for years.
7807 or 7805, Use a heatsink !
I'd say the occaisional peaking of Fibs gauge is down to the aformentioned bad
grounding or the gauge is breaking down.
Just cos it goes to a green wire doesnt mean its well grounded
you need further testing to know for sure.
Sorry to be a pedantic SOB but it wont
A bad ground ( green) on the 7V regulator can make the output go high
as the reference voltage will 'float'
but poor grounding on the thermostat/sender will inhibit the current flow and make the
gauge read low, if at all.
Sadly, before we lost him. Marshall was providing kits for DIY 7V regulators
using the 7807 which for some reason is like rocking horse shit in the UK
Thats why I used cheap, common as muck, got loads right here, 7805s with
green leds on the ground pin to get the same effect.
Ok 6.95V but that'll do me its crude circuit anyway.
If you cant get a 7807, 7805's plus green leds and very important heatsink
will work nicely and have been for years.
7807 or 7805, Use a heatsink !
I'd say the occaisional peaking of Fibs gauge is down to the aformentioned bad
grounding or the gauge is breaking down.
Just cos it goes to a green wire doesnt mean its well grounded
you need further testing to know for sure.
